4results about "Sludge drying" patented technology

The invention relates to a method for controlling a drying plant (1), in particular a sewage sludge drying plant, for drying moist material (2), especially sewage sludge, in which the moist material (2) is fed into a drying chamber (5) of the drying plant (1) via an inlet (3) and in which the at least partially dried material (2) is discharged from the drying chamber (5) via an outlet (4). Furthermore, the amount of water evaporated per unit time during the drying of the moist material (2) is determined. In addition, the amount of moist material (2) fed into the drying plant (1) per unit time is increased or decreased, taking into account the determined amount of water evaporated per unit time. The invention also relates to the drying plant (1).

The invention relates to a method for controlling a drying plant (1), in particular a sewage sludge drying plant, for drying moist material (2), especially sewage sludge, in which the moist material (2) is fed into a drying chamber (5) of the drying plant (1) via an inlet (3) and in which the at least partially dried material (2) is discharged from the drying chamber (5) via an outlet (4). Furthermore, the amount of water evaporated per unit time during the drying of the moist material (2) is determined. In addition, the amount of moist material (2) fed into the drying plant (1) per unit time is increased or decreased, taking into account the determined amount of water evaporated per unit time. The invention also relates to the drying plant (1).

Disclosed herein is a process for de-watering a sludge. The process comprises heating a de-watering fluid, and passing the de-watering fluid through the sludge, thereby de-watering the sludge. Also disclosed herein is a system for de-watering a sludge and a sludge which is at least partially de-watered according to the process.